Bar tool



FIG. 1 is an enlarged perspective view of a bar tool showing my new design;

FIG. 2 is a top view of the bar tool of FIG. 1;

FIG. 3 is a front elevation view of the bar tool of FIG. 1, the rear view, left side elevation, and right side elevation being a mirror image; and,

FIG. 4 is a bottom view of the bar tool of FIG. 1. 

CLAIM The ornamental design for a bar tool, as shown and described. 